NOII5SM1300A
Sync of left shift-register
Sync of right shift-register
Last line, followed by
sync of left shift-register
Line n
T reg_int
Sync
T int
Figure 18. Synchronization of Shift Registers in Rolling Shutter Mode
X_REG Register (10:0)
The X_REG register determines the start position of the
window in the X-direction. In this direction, there are 640
possible starting positions (two pixels are addressed at the
same time in one clock cycle). If sub sampling is enabled,
only the even pixels are set as starting position (for instance:
0, 2, 4, 6, 8 … 638).
YL_REG (10:0) and YR_REG (10:0)
The YL_REG and YR_REG registers determine the start
position of the window in the Y-direction. In this direction,
there are 1024 possible starting positions. In rolling shutter
mode the YL_REG register sets the start position of the read
(left) pointer and the YR_REG sets the start position of the
reset (right) pointer. For both shutter types YL_REG is
always equal to YR_REG.
Image Core Register (7:0)
Bits 1:0 of the IMAGE_CORE register define the test
mode of the image core. Setting 00 is the default and normal
operation mode. In case the bit is set to ‘1’, the odd (bit 1)
or even (bit 0) columns are tight to the reset level. If the
internal ADC is used, bits 0 and 1 are used to create test
pattern to test the sample moment of the ADC. If the ADC
sample moment is not chosen correctly, the created test
pattern is not black-white-black-etc. (IMAGE_CORE
register set at 1 or 2) or
black-black-white-white-black-black (IMAGE_CORE
register set at 9) but grey shadings if the sensor is saturated.
Bits 7:2 of the IMAGE_CORE register define the
sub-sampling mode in the X-direction (bits 4:2) and in the
Y-direction (bits 7:5). The sub-sampling modes and
corresponding bit setting are given in Table 11 and Table 12
on page 11.
Amplifier Register (6:0)
1. GAIN (bits 3:0)
The gain bits determine the gain setting of the output
amplifier. They are only effective if UNITY = 0. The
gains and corresponding bit setting are given in
Table 13 on page 12.
connects to ADC_IN. The gain amplifier and output
driver of the second path are put in standby.
4. STANDBY
If STANDBY = 0, the complete output amplifier is
put in standby. For normal use, set STANDBY to ‘1’.
DAC_RAW Register (6:0) and DAC_FINE (6:0)
Register
These registers determine the black reference level at the
output of the output amplifier. Bit setting 1111111 for the
DAC_RAW register gives the highest offset voltage. Bit
setting 0000000 for the DAC_RAW register gives the lowest
offset voltage. Ideally, if the two output paths have no offset
mismatch, the DAC_FINE register is set to 1000000.
Deviation from this value is used to compensate the internal
mismatch (see Output Amplifier on page 12).
ADC Register (2:0)
1. TRISTATE_OUT (bit 0)
In case TRISTATE = 0, the ADC_D<9:0> outputs are
in tri-state mode. TRISTATE = 1 for normal operation
mode.
2. GAMMA (bit 1)
If GAMMA is set to ‘1’, the ADC input to output
conversion is linear; otherwise the conversion follows
a ‘gamma’ law (more contrast in dark parts of the
window, lower contrast in the bright parts).
3. BIT_INV (bit 2)
If BIT_INV = 1, 0000000000 is the conversion of the
lowest possible input voltage, otherwise the bits are
inverted.
Data Interfaces
Two different data interfaces are implemented. They are
selected using pins IF_MODE (pin 12) and SER_MODE
(pin 6).
Table 19. SERIAL AND PARALLEL INTERFACE
SELECTION
IF_MODE SER_MODE Selected interface
2. UNITY (bit 4)
In case UNITY = 1, the gain setting of GAIN is
bypassed and the gain amplifier is put in unity feedback.
1
0
X
1
Parallel
Serial 3 Wire
3. DUAL_OUT (bit 5)
If DUAL_OUT = 1, the two output amplifiers are
active. If DUAL_OUT = 0, the signals from the two
buses are multiplexed to output PXL_OUT1 which
Parallel Interface
The parallel interface uses a 16-bit parallel input
(P_DATA (15:0)) to upload new register values. Asserting
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